Green-pea, bean, and cow-pea huller.



R. P. SCOTT. GREEN PEA, BEAN,.AND 00w PEA HULLBR.

. APPLICATION FILED SEPTSO, 1913. I 1,1 07,207, Patented Aug. 11, 1914.

3 SHBETS-SHEET 1.

R. P. SCOTT.

GREEN PEA, BEAN, AND cow PEA HULLBR. APPLICATION FILED HEP-T. 30, 1913. 1,1 07,207, Patented Aug. 11, 1914.

3 SHEETS-SHEET 2.

R. P. SCOTT. GREEN PEA, BEAN, AND 00W PEA HULLER.

APPLICATION FILED SEPT.30, 1913.

1,107,207. Patented Aug. 11,1914.

3 SHEETS-SHEET 3.

5 2 3) .Ezg Q.

5/ 11 GH M4213 ROBERT P. SCOTT, Q15 CAJDIZ, @1310.

GREEN-PEA, BEAN, AND COVFIPEA HELLER.

Specification of Letters Patent.

Patented fang. ff, 'llfHlfL4-.

Application filed September 30, 1913. Serial No. 3953,5578.

To all whom it may concern Be it known that f, ROBERT P. Soon, a tiren of the United States, residmg at El Cadiz, Harrison county, Ohio, have inventcertain new and useful Improvements 1n Green-Pea, Bean, and Cow-Pea Hullers, of

which the following is a specification.

My invention relates to machines for hull in this art and to improve the product obrained therefrom and the capacity of such machines. 7

More particularly my object is to improve upon the construction of the machine with relation to its simplicity, durability, facility of handling and shipping, taking it apart and setting it up, together with ease of transportation, moving it from place to place, decreasing its weight and the location of the center of gravity so as'to make the machine more stable and portable.

Another object is to secure economy of construction and to make the machine more practicable for the various uses for which itis intended.

My invention consists m an improvement in the general arrangement of the driving" mechanism and the-construction of the separating drum. whereby the driving power fhr the drum is automatically increased upon increase of load or resistance encountered by the drum.

My invention consists further in an automatic feeding device for feeding the material to the machine consisting of a rake and means for operating it.

My invention consists further in providing the pea hulling machine with a straw carrier formed of a cylindrical outer screen and a worm within the screenfor delivering the material from the machine.

The various improvements herein pointed out are the result of actual use and necessity as developed. by the operation of the machines in practice.

With the above and other objects in view, my invention consists more particularly in the parts, improvements and combinations set-forth in the claims.

Heretofore machines for hullmg green peas have been mostly driven by gear wheels meshing into a cog wheel on the outer drum, the said gear wheels being driven by a pinion upon the countcrshaft. The countershaft is driven by the main driving shaft which carries the inner drum. In my former machinesa single shaft was driven from the engine which shaft in turn connected with a counter shaft running over the top of the machine, the counter shaft driving the outer drum by means of sprocket wheels upon a shaft and a chain circling the outer drum, and the sprocket wheels. In accordance with my present invention, the outer drum is driven by means of travelers which carry the drum, and drive it through frictional contact, whereas in prior machines the travelers were more :idlers' and were turned by the drum. I have also done away with. the counter shaft over the top of the machine, thus saving head room. The travelers carry sprockets and are rotated positively by a sprocket chain driven from the central shaft and suitable means. are provided for turning'the outer drum when the resistance to rotation increases by reason of heavy work.

Turning now to the drawings: Figure 1 is an end elevation'of my new huller, showing the feed hole and the driving chains. Fig. 2 is a side elevation and section of the feed and discharge endof the machine showing the feeding device and the straw carrier. Fig. 3 is a cross section of both inner and outer. drum, the travelers and the end rings of the outerdrum. Fig. 4 is a detailed view in section of an elevating rib and of the channel iron and ring in which it is anchored. Fig. 5 is a plan view of a screening net for, the outer cylinder.

The end frame 1 (Fig. 1) supports the driving mechanism. The main driving shaft 2 carries a sprocket 3 engaging chain 4, the latterv driving sprocket wheel 5 re movably mounted on the end of shaft 6, sprocket wheel 7 removably mounted on the end of shaft 8, and sprocket wheel 9 By using a fourth sprocket above the beater shaft and by having a single open chain engage all four sprockets, the drum and the beater shaft are driven in the same direction. The center of gravity of the driving 'may be readily varied by simply the small sprocket 15. It will be system is kept low and beneath the top of the machine.

Adrum 11 is secured to shaft 2 and beaters l2 extend radially from this drum and are bolted to it at 13. The heaters are made in two parts and bolted together at 14. Means are provided for driving the'apron from the sprocket chain drive. Mounted on shaft 6 is a small sprocket 15 engaging sprocket wheel 16 on shaft 17 by means of chain 18. A ron roller 19 is securely fastened to shaft 17 thus operating the roller upon which the'cleaning and separating apron 20 is carried'. 'By thisjmeans the speed of the apron observed i that a change of speed of the driven parts may be readily effected since one change of.

cated at the top and between the other two travelers 22 and 23 as shown in Figs. 2 and 3. 'All the travelers bear upon the drum. The outer or separating drum 24 carries lifting ribs 25. Suitable means are provided so as to automatically increase the pressure of the travelers upon the drum when the the same shaft 8 which load of the machine increases or when it becomes overloaded, or if the drum tends to stick for any reason. To accomplish this result the third traveler 21 is mounted upon carries the sprocket 7.1 These parts have avertical motion, being mounted inan arm 26 which is free to swing about its pivot 27'. It will thus be seen that any pull on the chain 4 acts to pull down on the sprocket 7, thus increasing the pressure of all of the travelers upon the end rings of the outer drum.

In order to sustain the increased pressure which is brought upon the outer drum, when the sprocket; 7 and corresponding traveler is pulled down upon it, I make the end circles or rings 28 of iron and of across section to withstand the pressure. As shown in Figs. 1', 2, 3 and 4, these rin are made of channel iron. By reason 0 this special cross section the iron rings are also welladapted for and .form a strong anchor for the elevating ribs. The channels are tapered on their insides and the ends of the elevating ribs-25 (see Figs. 2 and 4% are fitted into the channels, a bolt 26 elping to firmly unite the parts. By this means no changing 'rib to the drum.

In accordance with my invention means are provided for feeding the mater1al to the drum and a straw carrier for discharging the material from the drum. The feedingmechanism includes a-chut'e 27 Fig. 2 which directs the vines into the feed hole 28. This chute ma be slanted more or less in order to assist t 1e forward movement of the vines. A rake 29 with teeth 30 is driven by a crank 31 from the sprocket shaft 10 through intermediate connections consisting of jointed levers 32 and 33. The, teeth of the rake ride over the vines as the rake is withdrawn and push them forward into the feed hole when it is advanced. The teeth 34 at the bottom of the feed chute prevent the material from returning with the rake when the latter is withdrawn.

My straw carrier 35 Fig. 2 is constructed in the form of an Archimedean screw and consists of a cylindrical wire screen 36 with a screw 37 upon the inside thereof. It is driven through a universal joint 38, connected to the end of the revolving shaft 10. Suitable gearing 39 and 40 drive the screen. The gear 39 is mounted upon the shaft carrying one member of the universal joint. The material when discharged from the perforated screen end of the drum drops into the chute 41 and is delivered to the screw 37. The screw and screen elevate and discharge the straw and any peas thatmay remain are sifted out by the screen, collected and saved. The separating drum is of polygonal cross-section and carries at its discharge enda sifting screen 42 made of wires.

In accordance with my invention I provide a special screening surface for the body of the separating drum 24. This consists of a pliable netting of fibrous strands such as the cord netting, shown in Fig. 5. I may make use of an ordinary seine or fish net, but in order to make use of a heavier thread I prefer to make a net by using large sized cord crossed at suitable intervals to form the correct size of opening and staple the cords to ther instead of knotting them. Knots tail-up a great deal of space with small threads. A very useful feature of the netting is that it may be stretched in one direction which permits it to contract in the other so that any quadrilateral shape can be attained for'the mesh. By drawing the net into a lozenge or diamond shape, the apertures for the discharge of the hulled product can be restricted in size in onedirection and since products like green peas are substantially round, the meshes may be made justlarge enough for the peas to pass through and no more.

As shown in Fig. 5, the screen surface mayibe made in panels, in each ofwhich the netting is mounted or stretched-upon a suitable frame 24:having pins or the like 94", the said frameand pins constituting means for maintaining the shape of the screen openings and supporting the screen fabric.

The shape of the "openingsmay be varied if desired by stretching the net and refastening it by means of the pins. For lima beans, an aperture elongated in one direction and" contracted in the other is a better shape than-a round hole, since the lima bean itself is elongated. Another advantage of-the. netting is that if the apertureis slightly and sprocket wheels of considerable weight over the top of the machine as used in my prior devices, are done away with. The present machine concentrates the weight lower down so that the center of gravity of the machine as a whole is near the ground and hence the machine is much safer, both when being transported and when in use.

Havingthus described my invention, its operation will be readily understood.

' Changes may be made in carrying out the leading features of the invention Without departing from the'principle. Thus instead of sprocket chains equivalent means may be used.

What I claim; and desire to secure by Letters Patent is:

-1.' In a machine for hulling peas, beans and the like by impact, the combination of an. outer separating dru provided internally with lifters, an inne concentric shaft carrying a sprocket, said'shaft being pro-.

vided with an inner drum carrying heaters separated by longitudinal clearances from the lifters, friction travelerslfrictionall engaging and carrying the outer rum, sprockets secured to said travelers for driv-. ing them, a fourth sprocket above said inner shaft, a single driving chain running over the inner shaft s rocket, under said traveler sprockets, an overthe fourth rocket, thus causing the two concentric mec anisms to revolve in the same'dire'ction.

2. In a machine ion-hulling peas and the like, the combination of an outer separating drum, travelers engaging-said drum, a chain engaging and driving said travelers,

and means for automatically increasing the g feeding drum when the drum encounters additional resistance. r

3..In a machinefor hulling peas and the'like,.a separatingdrum adaptcd'to receive the vines, means for supporting and driving saiddrum and-{a single driving chain conveying power to said means and automatically increasing the pressure between "said means and" said drumwhen the drum encounters additional resistance. 4: In a; machine for hulling peas and the like, an outer separating drum, channel'irons forming the ends of said drum and. elevating ribs anchored in said channel irons.

5. In a machine. for hillling peas and the like, an outer drum, rings consisting of channel shaped iron forming the ends of said drum, a' pair of travelers engaging pressure of one of said travelers upon the each of said rings, a third traveler for each ring engaging the same at a point between the other two and means whereby said third traveler automatically adjusts itself tb the change in the load upon one or both of the end rings of the drum.

6. In a machine for hulling green peas and the like, the combination of a separating drum, two end rings. formed of chan nel iron forming the ends of the drum, three travelers enga ing each end ring, sprockets secured to sai travelers and a single chain engaging and drivin said sprockets.

In a machine or'hulling een peas and the like, the combination 0 an outer separating drum, a plurality of travelers engaging and drivin said drum, sprockets secured to said traveiers, a central driving shaft carrying heaters and having a sprocket, a single sprocket chain engaging all of said sprockets and passing over the shaft sprocket and beneath the traveler sprockets "whereby the separating drum and beater shaft are rotated in the same direction at difl'erent speeds, at-cleaning apron, and a s rocket chain operating to drive said apron rom one of the traveler shafts.

.8. In a machine for hulling een peas and the like, the combination 0 a. rotary separating drum, driving means including a idrivin chain for driving said drum, a evice for feeding the material to said drum, a straw carrier for discharging the material from the exit end of the drum, end rings forming the ends 'of said drum and an oscillating traveler for automatically increasingtthe pressure upon the drum.

9. In a machine for hullin green peas and the like, the combination 0 a separating drum, an inner beater carryin drum and a cover or screening surface or the separator consisting of a net of soft fibrous A l iable strands, saidv strands inclosing openmgs the walls of which are adapted to be variable in shape, and means for maintaining the shape and supporting the screening surface.- Y i 10. In a; machine for hulling green peas and thevlike, the combination of a. separating drum, an inner beater carrying-drum, and a cover or screeningsurface separating drum consisting of a Woven net of cord the openings of which are adapted to be variable in shape, andmeans for maintaining the shape and supportingthe screening surace. 4 11.- In a machine for hulling green peas and the like, the combination of a drum for elevating the peas, said: drumbeing provided with a sifting screen made of soft. 

